Use the Trigonometric Substitution U = a Sin $\theta$ , Where -

question 90

Multiple Choice

Use the trigonometric substitution u = a sin $\theta$ , where - $\pi$ /2 < $\theta$ < $\pi$ /2 and a > 0 to simplify the expression $\sqrt { a ^ { 2 } - u ^ { 2 } }$ .

• A) a csc \(\theta \)
• B) a sin \(\theta \)
• C) a tan \(\theta \)
• D) a cos \(\theta \)
• E) - a cos \(\theta \)

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